Not sure how you can say he is always injured. He's been mostly healthy minus a few games this and last year and his 2nd year (2 games) and he still produced solid numbers.
This year he's missed 5 games and played 6. That's more then missing "a few". Damn near half the games. Last year he also missed 5 games. That's nearly 1/3rd of a season. Again, much more then "a few".